Tackling crop losses at the root means sharing knowledge

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By Dr Ulrich Kuhlmann, Executive Director Global Operations, CABI


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ACABIll farmers are affected by pests and diseases attacking their crops, but smallholder farmers and their dependents in low- and middle-income countries are disproportionately affected. To put it in perspective, there are about 500 million smallholder farmers worldwide who feed about 70% of the world’s population. When you cultivate less than a hectare (2.5 acres) of land and rely on your crops for both sustenance and income, fighting pests can become a battle for life and death. International trade and climate change are exacerbating the problem by altering and accelerating the spread of crop pests.

Occasionally, when a particularly destructive pest surfaces, it can make headline news. Last year it was reported that the tomato leaf miner moth (tuta absoluta) was wreaking havoc across Africa, causing USD 5 million of damage in Nigeria alone and driving up the price of tomatoes, a food staple. Earlier this year, the fall armyworm made the news for devastating maize crops from Ghana to South Africa. But for smallholder farmers the battle against pests is a daily struggle, not an intermittent occurrence.

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Human migration, environment and climate change

By Daria Mokhnacheva, Thematic Specialist at the Migration, Environment and Climate Change Division, International Organization for Migration (IOM), with contributions by Dina Ionesco, Head of the Migration, Environment and Climate Change Division (IOM) and François Gemenne, Executive Director of the Politics of the Earth Programme at Sciences Po, and Senior Research Associate at the University of Liège – Hugo Observatory

 

the-atlas-of-environmental-migrationEnvironmental migration is a fact. Most countries experience some form of migration associated with environmental and climate change, or forced immobility for those populations that end up trapped. Sudden-onset disasters as well as slow-onset environmental change taking place around the world, whether natural or manmade, profoundly affect migration drivers and migration patterns, even though the relationship between concrete environmental factors and migratory response is seldom direct and linear. Indeed, environmental migration or immobility results from the interplay of intricate economic, political, social and environmental dynamics, where the environmental component is sometimes hard to identify but is nonetheless critical.

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Speeding ahead with a rear-view vision: the looming crisis of air pollution in Africa

By Dr Rana Roy, Consulting Economist, author of The Cost of Air Pollution in Africa, OECD Development Centre Working Papers, 2016

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WHO Global map of modelled annual median concentration of PM2.5

Africa is speeding toward a new crisis: an explosive increase in air pollution, with all its human and economic costs.

Africa is by no means alone in suffering the modern curse of air pollution. No less than 92% of the world’s population is now exposed to pollution levels exceeding World Health Organisation limits.[1] Nor is Africa “over-represented” in the global death toll from air pollution as it stands today. The total of premature deaths attributable to each of the two main types of air pollution, ambient particulate matter pollution (APMP) and household air pollution (HAP), stood at around 3 million.[2] Of these, Africa accounted for around 250,000 premature deaths from APMP, less than its share of the global population would suggest, and over 450,000 premature deaths from HAP, roughly in line with its share. In comparison, it is China, with its 900,000 deaths from APMP and 800,000 deaths from HAP that dominated the global death toll in 2013. Continue reading

Le climatologue et l’instituteur

Par Laurent Bossard, Directeur, Secrétariat du Club du Sahel et de l’Afrique de l’Ouest (CSAO/OCDE)

(English version follows)

image-finding-problems-to-fit-solutionsDans le deuxième opus des Notes ouest-africaines du Secrétariat du CSAO/OCDE («Les impacts climatiques dans le Sahel et en Afrique de l’Ouest: Le rôle des sciences du climat dans l’élaboration des politiques » ), Carlo Buontempo et Kirsty Lewis du Met Office UK s’interrogent sur le rôle des sciences du climat dans la formulation des politiques.

J’avais envisagé d’intituler ce blog « Ne laissez pas les climatologues s’occuper (seuls) du changement climatique ! ». Après tout, les auteurs eux-mêmes ne soulignent-ils pas que les climatologues ne sont pas nécessairement bien équipés pour identifier les éléments essentiels du climat et du changement climatique au regard des problématiques humaines ? J’ai toutefois finalement renoncé  du fait d’une admiration sincère pour cette corporation dont la lourde tâche est de nous aider à construire un avenir meilleur pour la planète.   Continue reading

Africa’s Blue Economy: An opportunity not to be missed

By Dr. Carlos Lopes, UN Under Secretary General & Executive Secretary of the UN Economic Commission for Africa

Blue-economyThe world’s oceans, seas and rivers are a major source of wealth, creating trillions of dollars’ worth in goods and services as well as employing billions of people. Three out of four jobs that make up the entire global workforce are water-dependent. It is forecasted that the annual economic value of maritime-related activities will reach 2.5 trillion euros per year by 2020, while the International Energy Agency estimates that renewable energy from the ocean has a power potential sufficient to provide up to 400% of current global energy demand. Yet Africa’s blue potential remains untapped. Continue reading